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HD SDI BNC Extension Cables
HD-SDI & 12G UHD-SDI BNC Extension Cables
Professional Broadcast BNC Extension Cables
AV-Cables.net manufactures a complete line of professional 75-ohm BNC extension cables for broadcast television, live production, post-production, digital cinema, corporate AV, and professional video applications. Designed to extend existing BNC video connections without sacrificing signal quality, our extension cables are trusted by broadcasters, production companies, rental houses, and AV integrators throughout North America.
Whether you're working with HD-SDI, 3G-SDI, 6G-SDI, or 12G UHD-SDI, our extension cables deliver the signal integrity and reliability required for today's demanding video environments. Every cable is hand-assembled in the USA using genuine Belden broadcast coaxial cable and premium Kings or Amphenol true 75-ohm BNC connectors, then individually tested before shipment.
Our extension cables are available in multiple cable types to meet your application requirements, including Belden 1505A RG59, Belden 1855A Mini RG59, Belden 4505R RG59, and Belden 4855R Mini RG59, providing solutions for everything from flexible patch cables to long-distance 4K UHD video transmission.
Features
- Supports HD-SDI, 3G-SDI, 6G-SDI, and 12G UHD-SDI video formats
- Compatible with 1080p HD, 2K, UHD, HDR, and 4K video workflows
- Genuine Belden broadcast coaxial cable
- Available in standard RG59 and miniature RG59 constructions
- Premium Kings and Amphenol true 75-ohm BNC connectors
- Professional 3-piece crimp connector design
- Low attenuation with excellent return loss
- Double-shielded construction for superior EMI and RF protection
- Flexible cable designs for easy routing in equipment racks and production systems
- Custom lengths from 6 inches to 300 feet
- Standard colors: Black, Red, Green, Blue, White, and Yellow
- Additional jacket colors available upon request
- Same-day shipping on most standard assemblies
- Individually assembled and performance tested
- Made in the USA
Cable Options
6G HD-SDI Extension Cables
Ideal for HD broadcast, 1080p production, digital signage, and professional AV installations.
Available using:
- Belden 1505A RG59
- Belden 1855A Mini RG59
Supports:
- HD-SDI
- 3G-SDI
- 6G-SDI
- Select dual-link 4K applications
12G UHD-SDI Extension Cables
Designed for the latest broadcast infrastructure supporting uncompressed UHD video and high-bandwidth production systems.
Available using:
- Belden 4505R RG59
- Belden 4855R Mini RG59
Supports:
- 12G-SDI
- 6G-SDI
- 3G-SDI
- HD-SDI
- SD-SDI
- 4K UHD
- HDR
- High-frame-rate video
Typical Applications
Our BNC extension cables are commonly used with:
- Broadcast television studios
- Live event and sports production
- Mobile production trucks
- Fly packs
- Camera systems
- Production switchers
- Video routers
- Patch panels
- Multiviewers
- Video monitors
- Signal converters
- Video servers
- Recording systems
- Test and measurement equipment
- Corporate AV installations
- Houses of worship
- Educational facilities
- Digital cinema systems
Why Choose AV-Cables.net?
For over 20 years, AV-Cables.net has manufactured premium broadcast cable assemblies built for professional performance and long-term reliability. Every extension cable is constructed using genuine Belden broadcast cable, premium Kings or Amphenol connectors, and professional crimp termination techniques to ensure dependable operation in mission-critical applications.
Every cable includes:
- Hand assembly in the USA
- Individual performance testing
- Professional heat-shrink strain relief
- Clearly labeled cable lengths
- Reusable hook-and-loop cable strap
- 30-Day Replacement Warranty
- Lifetime Connector Replacement Warranty
Need something custom? We build extension cables to your exact specifications, including custom lengths, color-coded assemblies, bundled snake cables, rack wiring kits, and OEM production runs. Volume pricing is available for broadcasters, production companies, AV integrators, resellers, and rental houses.